Apexon Trainee Interview Questions and Answers for Experienced

Q1. Regarding Java 8, Spring boot,. Micro services
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Q1. . Regarding Java 8, Spring boot,. Micro services
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Q1. Java basics to advanced
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Q2. Collections concepts in java
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Collections in Java are data structures that store and manipulate groups of objects.
• Collections framework provides interfaces (List, Set, Map) and classes (ArrayList, HashSet, HashMap) for storing and manipulating data.

• Collections offer methods for adding, removing, and accessing elements in a structured way.

• Collections can be used to sort, search, and iterate over elements efficiently.

• Example: ArrayList<String> ...read more
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Q3. Threads and its life cycle
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Threads in programming have a life cycle that includes creation, running, blocking, and termination.
• Threads are created using the Thread class in Java or pthread_create in C.

• Threads start running when the start() method is called.

• Threads can be blocked using methods like sleep(), wait(), or join().

• Threads terminate when their run() method completes or when explicitly stopped.
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Q4. OOPS with DB connections
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Object-oriented programming principles can be applied to manage database connections efficiently.
• Encapsulation: Encapsulate database connection details within a class to hide complexity.

• Inheritance: Use inheritance to create reusable database connection classes.

• Polymorphism: Implement polymorphism to switch between different types of database connections.

• Abstraction: Abstract database connection methods to simplify usa
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Q5. Spring boot basic to medium
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Questions on HTML, CSS, JQUERY, PHP, WORDPRESS. this is for WordPress developer role.

Q1. Manager round. Questions on experience, scenerios, coding standards etc..
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Q1. Salary Discussion
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Q1. Questions related to basic Javascript.
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Q2. How confident you are in work.
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Q1. What are the features of Java8
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Java 8 introduced significant features like lambdas, streams, and new date/time APIs, enhancing productivity and code readability.
• Lambda Expressions: Enable functional programming by allowing you to pass behavior as a parameter. Example: (a, b) -> a + b.

• Streams API: Facilitates processing sequences of elements, enabling operations like filter, map, and reduce. Example: list.stream().filter(x -> x > 10).collect...read more
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Q1. Transaction in Java
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A transaction in Java is a unit of work that is performed as a single, indivisible operation.
• Transactions ensure data integrity by either committing all changes or rolling them back if an error occurs.

• Transactions are typically used in database operations to ensure consistency.

• In Java, transactions are commonly implemented using frameworks like Spring's @Transactional annotation.
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Q2. GitHub code push
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Q1. About my self & Exper to Fit role
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Q1. Client Round Final & HR from HTC
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Q1. Technical discussion
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Q1. Shift, behaviour,terms conditions
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